Amazon Launches 'Elasticsearch Service' (ES) —
Elasticsearch is a real-time, distributed search and analytics engine (which effectively acts like a document database too) and Amazon have launched a new service around it.

SQLite As An Application File Format —
In many cases, SQLite is a better choice than either a custom file format, a pile-of-files, or a wrapped pile-of-files. SQLite is a high-level, stable, reliable, cross-platform, widely-deployed, extensible, performant, accessible, concurrent file format.

Introducing U-SQL: A Language For Easy Big Data Processing —
A language that’s part of Azure Data Lake Analytics that unifies the benefits of SQL with the expressive power of your own code. U-SQL’s scalable distributed query capability enables you to analyze data across relational stores such as Azure SQL Database.

The Way to Open Source Hadoop Native SQL —
Pivotal has open sourced HAWQ and MADlib, contributing them to the Apache Software Foundation meaning there is now a full featured, SQL standards compliant, interactive SQL engine for Hadoop available in open source.